| Reference number | EL/N1 |
| Level | SubSeries |
| Title | Letters from correspondents in natural philosophy to the Royal Society and its Fellows: 'Early Letters N1' |
| Date | 1663-1726 |
| Description | Original letters and related material on natural philosophy, including illustrative items, sent to the Royal Society for discussion at its meetings and for possible publication in the Philosophical Transactions (from 1665). Letters by Sir Isaac Newton are EL/N1/35 to EL/N1/65 |
| Extent | 1 |
| Format | Manuscript |
| Physical description | EL/N1 and EL/N2 are bound in one volume |
| Arrangement | Grouped by correspondent 'N'; then chronologically within the volume. |
| Digital images | View item on Science in the Making |
| Access status | Open |
| URL description | Also available on Early Modern Letters Online |